The chairman of the nation’s transportation accident investigations board is leaving to become the president and CEO of the National Safety Council.

Deborah Hersman said in a blog Tuesday that her nearly 10 years at the National Transportation Safety Board have been “a great ride,” but she is moving on to the second “dream job” of her career.

The 43-year-old Hersman was on-scene for more than 20 accident investigations, including the crash of an Asiana Airlines jet in San Francisco last July. She is particularly known for championing protections for children, including on planes.

Hersman said she came to Washington two decades ago believing “government can do important work on behalf of the citizens of this great country.”